High pressure continues to bring down a cool and crisp air mass across the Northeastern US. The core of the cool air mass will shift back into Eastern Canada as the jet stream starts to lift north allowing temperatures to moderate back into the 70s for the weekend. The warmth will have a price in the form of some showers starting late on Sunday.
Thursday night will be the coolest night during this period. Temperatures will drop to lower 50s in the city. Most of the surrounding suburbs will end up in the 40s, with some outlying spots ending up in the 30s.
Expect abundant sunshine on Friday. The winds will be on the light side and that should help allow temperatures to moderate into the upper 60s. As the high shifts to the south and offshore, southwesterly winds will develop, allowing for temperatures to continue to climb into the mid 70s on Saturday.
Sunday should start out pleasant with partly sunny skies and highs in the upper 70s to around 80 degrees. Late in the day, a frontal boundary will approach from the north bringing the chance of showers back into the forecast.
That front may linger around and several disturbances will ride along the frontal boundary, bringing the chance for occasional showers through the first half of next week. For now, temperatures will hover in the lower 70s during this period.